COSMOLOGY ON A 3-BRANE
C.DEFFAYET
Laboratoire de Physique Th\'eorique, B\^atiment 210,
Université Paris XI, 91405 Orsay Cedex, France


Abstract:
I consider the cosmology of a ``3-brane universe'' in a five dimensional (bulk) space-time with a cosmological constant. After deriving, in a nutshell, the analogous of the Friedmann equations for this system. I discuss various consequences, in particular the cosmology of the Randall-Sundrum scenario.